Getting to yes negotiating agreement without giving in

Getting to yes negotiating agreement without giving in

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Manylion Llyfryddiaeth
Prif Awduron: Fisher, Roger 1922-2012 (Awdur), Ury, William (Awdur)
Awduron Eraill: Patton, Bruce (Golygydd)
Fformat: Llyfr
Iaith:English
Cyhoeddwyd: New York, New York Penguin Books 1991.
Rhifyn:Second edition.
Pynciau:
Negotiation.